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Finding the Fourth Proportional to 79,309.67, 109,454.37 and 43,506.66

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Solution

The fourth proportional to 79,309.67, 109,454.37 and 43,506.66 is: 60,043.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309.67 : 109,454.37 = 43,506.66 : x
  2. Step 2: Convert to fraction form
    79,309.67/109,454.37 = 43,506.66/x
  3. Step 3: Cross multiply
    79,309.67x = 109,454.37 × 43,506.66
  4. Step 4: Simplify right side
    79,309.67x = 4,761,993,487.50
  5. Step 5: Solve for x
    x = 4,761,993,487.50/79,309.67
  6. Step 6: Final answer
    x = 60,043.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.